Is it possible to add self.cc('subject') to allowed_changed

[darkphex]

Hello all,

I need self.cc('subject') in allowed_changes in message.py for a project.

Would it be possible to add this, as I need this to save subjects :).

[alejcas]

It is possible but I don't have the time right now.

You can however send a PR.

[darkphex]

I'll give it a try, as I haven't done it yet.